Hey guys I’m looking to switch between 12v to 18v then 24v with 2 separate switches, so I have 3 battery’s, 2 of them are 6v 12ah ,and the other battery is 12v 12ah. I’m very familiar with wiring I did a set up, in my sons jeep to go from , 12v to 18v with a 30/40 amp automotive relay, and a 25-30 amp switch 12gag wire, but I can’t figure out out how inclule the last battery?? If any one can help that would been very appreciating

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It would be possible to use both my Turbo Timer and 18V board - have the timer automatically kick it from 12 to 18 after a time delay and then have a button for 18 to 24... Or you could go the two button route I suppose but that sounds like a lot to mess with while trying to steer too.